<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<link rel="stylesheet" type="text/css" href="css/my.css"/>
		<style type="text/css">
			/* 
			h1{
				color: blue;
			} */
			.blue{
				color: blue;
				font-size: 70px;
			}
		</style>
	</head>
	<body>
		<h1 style="color: red;">张老师</h1>
		<h1 class="blue">李老师</h1>
		<h1 class="pink">王老师</h1>
	</body>
</html>
